Aspiration is the more common practice: do ’n ḟear, to the man; de’n ṁnaoi, from the woman. They prefix t to s; as, Ṫug sé do’n tsagart é. He gave it to the priest. Sa (=ins an) usually aspirates in Munster; sa ḃosga ṁor, in the big box.
(2) When gan, without, is followed by the article it produces no change in the initial consonant following: as, gan an fíon, without the wine; but if the following noun be masculine and begin with a vowel, or be feminine beginning with s, t is prefixed: as, gan an t‑eun, without the bird; gan an tsúil, without the eye.
In the Northern dialect aspiration takes place after the preposition and the article.
607. When a simple preposition ending in a vowel comes before the possessive adjective a (his, her, or their), or the possessive ár, our, and ḃur, your, the letter n is inserted before the possessive: as, le n‑a láiṁ, by his hand; tré n‑a mbosaiḃ), through their palms; le n‑ár gcuid, with (or by) our portion; le nḃur dtoil, with your permission.
Except the prepositions do and de, which become d’.
Whenever go or le comes before any other word beginning with a vowel the letter h is usually inserted: as, ó ṁaidin go h‑oiḋċe, from morning till night; go h‑Albain, to Scotland; le h‑eagla, with fear. (See par. 29.)